the office of the president of the united states. >> the office of the president of united states. >> and will to the best of my ability. >> and will to the best of my ability. >> preserve, protect, and defend. >> preserve, protect, and defend. >> the constitution of the united states. >> the constitution of the united states. >> so help you god. >> so help me god. >> congratulations, mr. president. ♪ ♪ ♪ >> ladies and gentlemen, it is my great privilege and distinct honor to introduce the 44th president of the united states of america, barack h. obama. >> thank you. thank you. thank you so much. vice president biden, mr. chief justice, members of the united states congress, distinguished guests, and fellow citizens. each time we gather to inaugurate a president, we bare witness to the enduring strength of our constitution. we affirm the promise of our democracy. we are called to what binds this nation together is not the colors of our skin or the tenants of our faith, or the origins of our names. what makes us exceptional, what makes us american is our allegiance to an idea art